Comment by nudgeee

I see alot of people asking what kinds of PCIe expansion cards are likely to be used with the Mac Pro.

Here are some examples, used mainly in pro audio/video/broadcast workflows:

RME MADI/AES cards: https://www.rme-audio.de/internal-cards.html

ProTools HDX cards: https://www.avid.com/products/pro-tools-hdx

BlackMagic DeckLink cards: https://www.blackmagicdesign.com/nl/products/decklink

UAD DSP cards: https://www.uaudio.com/uad-accelerators/uad-2-pcie.html

Plus 25/40/100G Ethernet, NVME SSD and Fibre Channel/SAN cards.